Assigistoe to alvilxt



(No Mod-@1.)v

E. MCG. TURNER.

PUMP.

No. 305,982. Patented Sept. 30, 1884.

I y l ATTORNEYS.

N. Firms. Pham-Lithograph washmmn. un.

Nrrnn STATES Barr-incr* errent,

EDVARD MCG. TURNER, OE KNOXVILLE, TENNESSEE, ASSIG-NOR TO ALVIN A. YEAGER ANI) SQUIRE S. HEATH, BOTH OF SAME ILACE.

PUMP.

SPECIFICATION forming part of Letters Patent No. 305,982, dated September 30, 1884.

Application filed March 15, 1884. (No model.)

T all whom it may concern,.-

Beit known that I, EDWARD MCGTURNER, a citizen oi' the United States, and a resident of Knoxville, in the county of Knox and State of Tennessee, have invented certain new and useful Improvements in Oil-gan Pumps and I do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to I@ which it appertains to make and use the same,

reference being had tothe accompanying drawings, which form a part of this specification, and in which- Figure l is a vertical sectional view of an oil-can provided with my improved pump. Fig. 2 is a vertical sectional view of the pump removed from the can, and showing it on an enlarged scale. Fig. 3 is a cross-section through line .r x in Fig. 2, and Fig, 4t is a detail View 2o of a portion of one of the valve-chambers with its dished valve-seat.

Similar letters of reference indicate corresponding parts in all the figures.

My invention has relation to pumps for oil 2 5 tanks or cans of that class which are used for dispensing oils of any kind-such as keroseneoil or coal-oil in grocery-stores, or for dispensing castor-oil or other oils for medicinal use indrug-stores; and it consists in certain 3o improvements in the construction ofthe same, which will be hereinafter more fully described and claimed.

In the accompanying drawings, A denotes the can, and B the hinged hood or top ofthe 3 5 same.

I prefer to use in connection with my improved pump the improved can invented by me, which forms the subject of a separate apn plication for patent 5 but my pump may be 4o used with any other can, if desired.

B is the plunger-cylinder, in which works the plunger or piston G, which is operated by the piston-rod l), having a suitable handle at its upper end.

Afixed to one side of the plunger-cylinder, near its lower end, is the valve-chamber E, which consists of a cylinder suitably fastened t0 that part of the plunger-cylinder B, and extending down to the bottom ofthe can,where 5o it is provided with slots or notches e, forming inlets to the chamber. In the bottom of this valve-chamber is fixed an annular dished seat,

G, adapted to fit the ball-valve H. Valvechamber E communicates with pump-cylinder B through an opening, H, in one side of the same, and in the upper part of' the valvechamber is placed an additional ball-valve, H', adapted to iit upon the annular dished seat G. The upward play of the valves H' and H in the valve-chamber is limited by the 6o cross-bars g and Zz., and the top of the valvechamber communicates with the dischargetube I, which extends up through the top of the can.

Near the upper end of the plunger-cylinder B is fastened another valve-chamber, J ,havin g, like the lower valve-chamber, E, two dished inside valve-seats, K andK, and two ballvalves, L and L, which are coniined between their respective seats and the cross-bars t and 7o 7.,'. This upper valve-chamber, J, communicates with pump-cylinder B through an aper-4 ture, M, in one side of the same, and with the discharge-tube I through an aperture, N, in the upper part of valve-chamber zI, above its upper valve, L.

Upon discharge tube I is fixed horizontally a circular plate or cap, O, having a downward-proj ecting rim or collar, l?, adapted to4 fit into the fixed sleeve Q, which projects 8o upwardly from the topof the oil-can tray. Suitable means are provided for attaching collar I? to the'sleeve Q, intovwhich it is inserted.

I have found in practice that where the can and pump are to be used for dispensing heavy 8 5 oils-such as castor oil-the upper valvechamber, J, may be advantageously omit-ted, using the pump with the lower valve-cham` ber, E, only, and thus forming a single-acting pump. This is for the reason that heavy oils 9o of a viscid nature flow too slowly to iill both chambers between the reciproeations of the plunger, so that better results will be obtained with that class of oils with a single-acting pump. To this end I may construct the up` 95 per valve-chamber, J, in such a manner that it may either be removed from the plungercylinder B altogether, or it may be hinged to one side of the same, so as to be swung to one side when' not in use. In that case the aperroo plunger-Cylinder B,elosetl at its lower end and having side apertures, It and M, lower valve Chamber, lll, tastened to one s'itle ot' the plunger-cylinder and projectingl below the bottom of the sa1ne,havi1 1g inlets e, (lished valveseats G- G, autl balllvalves ll autl Il on opposite sides ot' the inlet or aperture lll, tliseharttg'etube l, connecting at its lower end. with the top ol" YalVe-ehamber l, and upper valve- Chamber, J, attached to one side ot the plunger-cylinder, and having dishetl valve-seats K lli', and ball-valves L and L on opposite sides ol' the inlet or aperture M, amleonnuunieating with the discharge-tube I through the aperture N in the upper part ot' the Valvechamber, substantiz'tlly as :unl for the purpose shown and set forth,

In testimony that I elainl the foregoing as my owu I have hereunto allixetl my signature in presence ol' two witnesses. 

